I'm not sure it's changed my life but it certainly has added another dimension to it.
I used to play Golden Oldies Rugby but had to stop because of cataract operations. So another love of mine, Astronomy, quickly filled the void as I looked for something to keep me active. And I think I exert as much energy lugging my rig in and out at night as I did standing on the wing in Rugby!!
Cheers,
Mario